Motion study x-ray
We study how your spine moves across positions to target the joints that are actually failing — no guessing.

Dr. Joseph (Joe) Sas, D.C. · Serving St. Louis
Dr. Joseph (Joe) Sas, D.C. uses Motion Study X-Rays to analyze how your spine moves, plus precise adjustments, to get St. Louis patients out of pain and back to living.
Conditions we treat
Every plan starts with a real diagnosis. Choose what you're dealing with to see how we treat it.
Lower and mid-back pain
Stiffness and tech neck
Radiating leg pain
Bulging and herniated discs
Fewer, milder headaches
Tingling in arms or legs
Rounded shoulders, forward head
Collision-related injuries
Why Gateway
We study how your spine moves across positions to target the joints that are actually failing — no guessing.
Specific, comfortable adjustments — no guesswork and no one-size-fits-all cracking.
Doctor of Chiropractic, DOT certified examiner, and a no-pressure benefits check with upfront pricing.
Day one is your discovery exam. Day two is your Report of Findings, where we walk you through what's wrong, how we'll fix it, how long it takes, and what it costs.



Recognized in St. Louis
St. Louis keeps voting us in — here's some of the local recognition we're proud of.

Best Chiropractor
St. Louis Magazine · 2025

Best South County Chiropractor
St. Louis Magazine · 2022–2024

Best South County Chiropractic Office
St. Louis Magazine · 2023

Best Chiropractic Office
St. Louis Headliner · 2025 & 2026

Best Chiropractor
St. Louis Headliner · 2025 & 2026
In the Community
From schools to businesses across St. Louis, here are some of the organizations we've partnered with for screenings, events, and outreach.

























































































































Meet the doctor
Dr. Sas treats St. Louis families, athletes, and commercial drivers out of Gateway Chiropractic on Gravois Rd. His focus: find the mechanical cause of the pain, explain it in plain English, and fix it with the least invasive care that works.
A Logan University graduate (2008), Dr. Sas has built one of St. Louis' top-rated chiropractic clinics and mentored chiropractors around the country. He's an FMCSA National Registry Certified Medical Examiner and a Certified Kinesio-Taping Physician (CKTP), and his care has earned repeated local recognition, including St. Louis Magazine's Best Chiropractor and St. Louis Headliner's Best Chiropractic Office.
Meet the teamGoogle reviews
Real, verified Google reviews from patients across St. Louis.
It starts with a real evaluation — then a clear plan at your Report of Findings. Same-week openings are usually available.
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